25ih

Cryo-EM structure of human Nav1.6 in complex with Cn2

Method: ELECTRON MICROSCOPY D_max: 139.9 Å Quality: GOOD

SAXS 散射曲线 SAXS Profile

P(r) 距离分布 P(r) Distribution

下载 Download SAXS (.dat) P(r) (.pr.out) CIF

▼

1. 结构基本信息 1. Structure Basics

条目编号 entry_id	25ih
沉积日期 deposition_date	2026-04-06
结构标题 title	Cryo-EM structure of human Nav1.6 in complex with Cn2
关键词 keywords	Nav1.6, voltage gated sodium channel, cryo-EM, toxin, Cn2, TRANSPORT PROTEIN-TOXIN complex, MEMBRANE PROTEIN; MEMBRANE PROTEIN
实验方法 method	ELECTRON MICROSCOPY

▼

2. SAXS 参数 (CRYSOL 理论计算) 2. SAXS Parameters (CRYSOL)

回转半径 Rg (Guinier) rg_guinier	41.27 Å
回转半径 Rg (电子) rg_electron	40.48 Å
零角强度 I(0) i0	402985000.00
分子量 molecular_weight	181250.0 kDa
排除体积 excluded_volume	233840 Å³
包络体积 envelope_volume	321760 Å³
水化壳体积 shell_volume	65942 Å³
包络直径 envelope_diameter	150.0 Å
壳层 Rg shell_rg	45.89 Å
包络 Rg envelope_rg	40.87 Å
形状 Rg shape_rg	40.51 Å
总 Rg total_rg	40.70 Å
总原子数 total_atoms	12733
残基数 n_residues	1467
球谐函数阶数 n_harmonics	20
q 范围 q_range	— – 0.5000 Å⁻¹
数据点数 n_points	101
壳层类型 shell_type	directional
溶剂电子密度 solvent_density	0.3340 e/Å³
壳层衬度 contrast_shell	0.0300 e/Å³
CRYSOL 版本 crysol_version	4.1.3

▼

3. P(r) 距离分布 (GNOM 反演) 3. P(r) Analysis (GNOM)

最大尺寸 Dmax dmax	139.9 Å
Rg (实空间) rg_real	41.19 Å
Rg 误差 (实空间) rg_real_error	1.24 Å
I(0) (实空间) i0_real	4.0300e+08
I(0) 误差 (实空间) i0_real_error	7.5730e+06
Rg (倒空间) rg_reciprocal	41.27 Å
I(0) (倒空间) i0_reciprocal	403000000.0000
解质量估计 total_estimate	0.8742
解质量评级 solution_quality	GOOD a GOOD solution
P(r) 峰数 n_peaks	2
主峰位置 r_peak_primary	51.5 Å
偏度 Skewness skewness	0.291
峰度 Kurtosis kurtosis	-0.170
角度范围 angular_range	— – 0.1900 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	35220000.0000
实空间数据点数 n_real_points	39
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.811; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 0.937

▶

4. 晶体学与实验 4. Crystallography & Experiment

▶

5. 实体与聚合体信息 (16)

Entity 1 polymer

描述 description	Sodium channel protein type 8 subunit alpha
分子量 formula_weight	225520.6 kDa
来源方法 src_method	man
拷贝数 entity_count	1

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	A
原子数 atom_count	12745

MAARLLAPPGPDSFKPFTPESLANIERRIAESKLKKPPKADGSHREDDEDSKPKPNSDLEAGKSLPFIYGDIPQGLVAVPLEDFDPYYLTQKTFVVLNRGKTLFRFSATPALYILSPFNLIRRIAIKILIHSVFSMIIMCTILTNCVFMTFSNPPDWSKNVEYTFTGIYTFESLVKIIARGFCIDGFTFLRDPWNWLDFSVIMMAYITEFVNLGNVSALRTFRVLRALKTISVIPGLKTIVGALIQSVKKLSDVMILTVFCLSVFALIGLQLFMGNLRNKCVVWPINFNESYLENGTKGFDWEEYINNKTNFYTVPGMLEPLLCGNSSDAGQCPEGYQCMKAGRNPNYGYTSFDTFSWAFLALFRLMTQDYWENLYQLTLRAAGKTYMIFFVLVIFVGSFYLVNLILAVVAMAYEEQNQATLEEAEQKEAEFKAMLEQLKKQQEEAQAAAMATSAGTVSEDAIEEEGEEGGGSPRSSSEISKLSSKSAKERRNRRKKRKQKELSEGEEKGDPEKVFKSESEDGMRRKAFRLPDNRIGRKFSIMNQSLLSIPGSPFLSRHNSKSSIFSFRGPGRFRDPGSENEFADDEHSTVEESEGRRDSLFIPIRARERRSSYSGYSGYSQGSRSSRIFPSLRRSVKRNSTVDCNGVVSLIGGPGSHIGGRLLPEATTEVEIKKKGPGSLLVSMDQLASYGRKDRINSIMSVVTNTLVEELEESQRKCPPCWYKFANTFLIWECHPYWIKLKEIVNLIVMDPFVDLAITICIVLNTLFMAMEHHPMTPQFEHVLAVGNLVFTGIFTAEMFLKLIAMDPYYYFQEGWNIFDGFIVSLSLMELSLADVEGLSVLRSFRLLRVFKLAKSWPTLNMLIKIIGNSVGALGNLTLVLAIIVFIFAVVGMQLFGKSYKECVCKINQDCELPRWHMHDFFHSFLIVFRVLCGEWIETMWDCMEVAGQAMCLIVFMMVMVIGNLVVLNLFLALLLSSFSADNLAATDDDGEMNNLQISVIRIKKGVAWTKLKVHAFMQAHFKQREADEVKPLDELYEKKANCIANHTGADIHRNGDFQKNGNGTTSGIGSSVEKYIIDEDHMSFINNPNLTVRVPIAVGESDFENLNTEDVSSESDPEGSKDKLDDTSSSEGSTIDIKPEVEEVPVEQPEEYLDPDACFTEGCVQRFKCCQVNIEEGLGKSWWILRKTCFLIVEHNWFETFIIFMILLSSGALAFEDIYIEQRKTIRTILEYADKVFTYIFILEMLLKWTAYGFVKFFTNAWCWLDFLIVAVSLVSLIANALGYSELGAIKSLRTLRALRPLRALSRFEGMRVVVNALVGAIPSIMNVLLVCLIFWLIFSIMGVNLFAGKYHYCFNETSEIRFEIEDVNNKTECEKLMEGNNTEIRWKNVKINFDNVGAGYLALLQVATFKGWMDIMYAAVDSRKPDEQPKYEDNIYMYIYFVIFIIFGSFFTLNLFIGVIIDNFNQQKKKFGGQDIFMTEEQKKYYNAMKKLGSKKPQKPIPRPLNKIQGIVFDFVTQQAFDIVIMMLICLNMVTMMVETDTQSKQMENILYWINLVFVIFFTCECVLKMFALRHYYFTIGWNIFDFVVVILSIVGMFLADIIEKYFVSPTLFRVIRLARIGRILRLIKGAKGIRTLLFALMMSLPALFNIGLLLFLVMFIFSIFGMSNFAYVKHEAGIDDMFNFETFGNSMICLFQITTSAGWDGLLLPILNRPPDCSLDKEHPGSGFKGDCGNPSVGIFFFVSYIIISFLIVVNMYIAIILENFSVATEESADPLSEDDFETFYEIWEKFDPDATQFIEYCKLADFADALEHPLRVPKPNTIELIAMDLPMVSGDRIHCLDILFAFTKRVLGDSGELDILRQQMEERFVASNPSKVSYEPITTTLRRKQEEVSAVVLQRAYRGHLARRGFICKKTTSNKLENGGTHREKKESTPSTASLPSYDSVTKPEKEKQQRAEEGRRERAKRQKEVRESKC

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI 分类编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 2 polymer

描述 description	Sodium channel regulatory subunit beta-1
分子量 formula_weight	24732.1 kDa
来源方法 src_method	man
拷贝数 entity_count	1

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	C

MGRLLALVVGAALVSSACGGCVEVDSETEAVYGMTFKILCISCKRRSETNAETFTEWTFRQKGTEEFVKILRYENEVLQLEEDERFEGRVVWNGSRGTKDLQDLSIFITNVTYNHSGDYECHVYRLLFFENYEHNTSVVKKIHIEVVDKANRDMASIVSEIMMYVLIVVLTIWLVAEMIYCYKKIAAATETAAQENASEYLAITSESKENCTGVQVAE

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI 分类编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 3 polymer

描述 description	Beta-mammal toxin Cn2
分子量 formula_weight	7605.7 kDa
来源方法 src_method	man
拷贝数 entity_count	1

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	D

KEGYLVDKNTGCKYECLKLGDNDYCLRECKQQYGKGAGGYCYAFACWCTHLYEQAIVWPLPNKRCSX

来源 Source

来源生物 organism	Centruroides noxius
通用名 common_name	Mexican scorpion
NCBI 分类编号 ncbi_taxonomy_id	6878
宿主生物 host_organism	Centruroides noxius

Entity 4 branched

描述 description	;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
分子量 formula_weight	1559.4 kDa
来源方法 src_method	man
拷贝数 entity_count	1

Entity 5 branched

描述 description	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
分子量 formula_weight	424.4 kDa
来源方法 src_method	man
拷贝数 entity_count	1

Entity 6 branched

描述 description	;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-2)]alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
分子量 formula_weight	1559.4 kDa
来源方法 src_method	man
拷贝数 entity_count	1

Entity 7 non-polymer

描述 description	2-acetamido-2-deoxy-beta-D-glucopyranose
分子量 formula_weight	221.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	6

Entity 8 non-polymer

描述 description	(3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en
分子量 formula_weight	544.8 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 9 non-polymer

描述 description	1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE
分子量 formula_weight	787.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	5

Entity 10 non-polymer

描述 description	CHOLESTEROL HEMISUCCINATE
分子量 formula_weight	486.7 kDa
来源方法 src_method	syn
拷贝数 entity_count	3

Entity 11 non-polymer

描述 description	CHOLESTEROL
分子量 formula_weight	386.7 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 12 non-polymer

描述 description	O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-L-serine
分子量 formula_weight	792.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 13 non-polymer

描述 description	1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE
分子量 formula_weight	510.7 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 14 non-polymer

描述 description	(5E,17R,20S)-23-amino-20-hydroxy-14,20-dioxo-15,19,21-trioxa-20lambda~5~-phosphatricos-5-en-17-yl hexadecanoate
分子量 formula_weight	661.9 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 15 non-polymer

描述 description	;[(2R)-1-octadecanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phospho ryl]oxy-propan-2-yl] (8Z)-icosa-5,8,11,14-tetraenoate ;
分子量 formula_weight	1047.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 16 water

描述 description	water
分子量 formula_weight	18.0 kDa
来源方法 src_method	nat
拷贝数 entity_count	12

▶

7. 引用文献 (1)

▶

晶胞边长 a length_a	1.000 Å
晶胞边长 b length_b	1.000 Å
晶胞边长 c length_c	1.000 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	90.00 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	—

空间群 space_group	P 1
空间群编号 int_tables_number	1
晶系 crystal_system	—

分辨率 resolution	2.800 Å
最低分辨率 resolution_low	— Å
R 因子 r_factor	—
R_work r_work	—
R_free r_free	—

分辨率 resolution	2.80 Å
分辨率测定方法 resolution_method	—
颗粒数 num_particles	203018

fit	/app/data/saxs_computation/5i/25ih/25ih.fit
pddf	/app/data/pr_computation/5i/25ih/25ih.pr.out
profile	/app/data/saxs_computation/5i/25ih/25ih.dat

Cryo-EM structure of human Nav1.6 in complex with Cn2

SAXS 散射曲线 SAXS Profile

P(r) 距离分布 P(r) Distribution

1. 结构基本信息 1. Structure Basics

2. SAXS 参数 (CRYSOL 理论计算) 2. SAXS Parameters (CRYSOL)

3. P(r) 距离分布 (GNOM 反演) 3. P(r) Analysis (GNOM)

4. 晶体学与实验 4. Crystallography & Experiment

晶胞参数 Unit Cell

对称性 Symmetry

精修参数 Refinement

冷冻电镜 EM 3D

5. 实体与聚合体信息 (16)

Entity 1 polymer

聚合体 Polymer

来源 Source

Entity 2 polymer

聚合体 Polymer

来源 Source

Entity 3 polymer

聚合体 Polymer

来源 Source

Entity 4 branched

Entity 5 branched

Entity 6 branched

Entity 7 non-polymer

Entity 8 non-polymer

Entity 9 non-polymer

Entity 10 non-polymer

Entity 11 non-polymer

Entity 12 non-polymer

Entity 13 non-polymer

Entity 14 non-polymer

Entity 15 non-polymer

Entity 16 water

7. 引用文献 (1)

8. 文件与曲线 (10)

Files (7)

Curves (3)